Données d'échantillonnage

Sea-ice meiofauna biodiversity from the Nansen Legacy cruise Q2 (cruise number: 2021704)

Dernière version Publié par The Nansen Legacy Project le 21 septembre 2023 The Nansen Legacy Project
Accueil:
Lien
Date de publication:
21 septembre 2023
Licence:
CC-BY 4.0

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Description

The data was collected during the Nansen Legacy seasonal study (Q2, cruise number: 2021704) from 27.04 - 20.05.2021 onboard the research vessel RV Kronprins Haakon, along a transect in the northern Barents Sea from 76N to 82N. The dataset contains abundance and biomass of sea-ice meiofauna (> 20 µm) including large protists such as foraminifers and ciliates and metazoans eggs. Sea-ice meiofauna were identified and counted with stereo microscopy and result are given as Individuals per liter (cells/L) and Individuals per square meter (Ind/m2). Biomass (μg C Ind.-1) was only determined for alive individuals according to carbon contents for ice meiofauna taxa based on literature summarized in Ehrlich et al. (2021, doi: https://doi.org/10.1525/elementa.2020.00169), and carbon values for foraminifers were provided by de Freitas et al. (2021) for benthic species (Bolivinia sp.: 0.00875 μg C Ind.-1; Elphidium sp.: 0.126 μg C Ind.-1, https://doi.org/10.2113/gsjfr.51.4.249) and Anglada-Ortiz et al. (submitted to PiO) for the pelagic species Neogloboquadrina pachyderma (0.0013 μg C Ind.-1).

Enregistrements de données

Les données de cette ressource données d'échantillonnage ont été publiées sous forme d'une Archive Darwin Core (Darwin Core Archive ou DwC-A), le format standard pour partager des données de biodiversité en tant qu'ensemble d'un ou plusieurs tableurs de données. Le tableur de données du cœur de standard (core) contient 29 enregistrements.

2 tableurs de données d'extension existent également. Un enregistrement d'extension fournit des informations supplémentaires sur un enregistrement du cœur de standard (core). Le nombre d'enregistrements dans chaque tableur de données d'extension est illustré ci-dessous.

Event (noyau)
29
ExtendedMeasurementOrFact 
135
Occurrence 
87

Cet IPT archive les données et sert donc de dépôt de données. Les données et métadonnées de la ressource sont disponibles pour téléchargement dans la section téléchargements. Le tableau des versions liste les autres versions de chaque ressource rendues disponibles de façon publique et permet de tracer les modifications apportées à la ressource au fil du temps.

Versions

Le tableau ci-dessous n'affiche que les versions publiées de la ressource accessibles publiquement.

Comment citer

Les chercheurs doivent citer cette ressource comme suit:

Marquardt M, Bluhm B, Gradinger R (2023). Sea-ice meiofauna biodiversity from the Nansen Legacy cruise Q2 (cruise number: 2021704). Version 1.6. The Nansen Legacy Project. Samplingevent dataset. DOI: 10.11582/2023.00082

Droits

Les chercheurs doivent respecter la déclaration de droits suivante:

L’éditeur et détenteur des droits de cette ressource est The Nansen Legacy Project. Ce travail est sous licence Creative Commons Attribution (CC-BY) 4.0.

Enregistrement GBIF

Cette ressource a été enregistrée sur le portail GBIF, et possède l'UUID GBIF suivante : a22bfeb3-ea39-43cb-ac93-ee8f7f9ddc66.  The Nansen Legacy Project publie cette ressource, et est enregistré dans le GBIF comme éditeur de données avec l'approbation du GBIF Norway.

Mots-clé

Samplingevent; sea-ice protist; sea-ice meiofauna; sympagic; northern Barents Sea; sea ice

Contacts

Miriam Marquardt
  • Créateur
  • Utilisateur
  • Personne De Contact
Chief engineer
UiT Arctic University of Norway
Tromsø
NO
Bodil Bluhm
  • Créateur
Professor
UiT Arctic University of Norway
Tromsø
NO
Rolf Gradinger
  • Créateur
Professor
UiT Arctic University of Norway
Tromsø
NO

Couverture géographique

The data was collected during the Nansen Legacy seasonal study (Q2, cruise number: 2021704) from 27.04 - 20.05.2021 onboard the research vessel RV Kronprins Haakon, along a transect in the northern Barents Sea from 76N to 82N.

Enveloppe géographique Sud Ouest [79,678, 28,696], Nord Est [82,227, 33,622]

Couverture taxonomique

N/A

Kingdom Chromista, Animalia
Phylum Arthropoda, Foraminifera, Rotifera, Ciliophora
Class Litostomatea, Spirotrichea, Copepoda, Malacostraca, Eurotatoria, Globothalamea
Order Rotaliida, Haptorida, Euplotida, Amphipoda, Ploima
Family Didiniidae, Synchaetidae, Euplotidae, Bolivinitidae, Calliopiidae

Couverture temporelle

Date de début / Date de fin 2021-05-05 / 2021-05-13

Données sur le projet

The Nansen Legacy is a novel and holistic Arctic research project providing integrated scientific knowledge on the rapidly changing marine climate and ecosystem. A new knowledge base is required to facilitate a sustainable management of the northern Barents Sea and adjacent Arctic Basin through the 21st century. The Nansen Legacy unites about 280 researchers, students, and technicians from ten Norwegian research institutions. The research team includes interdisciplinary arctic marine expertise within physical, chemical, and biological oceanography, as well as geologists, modelers and underwater robotic engineers. Jointly we investigate the past, present and future climate and ecosystem of the northern Barents Sea. In total, the project has spent over 350 days at sea between 2018 and 2022, using the new Norwegian research icebreaker ‘Kronprins Haakon’ as main research platform. The ship-based sampling is complemented by the use of underwater robotics, year-round moored observing platforms and satellite-based observations. Complementary model tools are used to integrate field-based observations, and to investigate the dynamics of the physical and biological components of the northern Barents Sea climate and ecosystem at present and in the future. The Nansen Legacy is home to over 70 early career scientists, providing them with a unique collaborative community and supervision across institutions and disciplines. This gives rise to a new generation of holistic thinking Arctic research leaders. The Nansen Legacy runs for seven years (2018–2024), and is funded by the Research Council of Norway and the Norwegian Ministry of Education and Research. They provide 50% of the budget while the participating institutions contribute 50% in-kind. The total budget for the Nansen Legacy project is 740 mill. NOK.

Titre The Nansen Legacy
Identifiant AeN
Financement This study was funded by the Research Council of Norway through the project The Nansen Legacy (RCN # 276730).
Description du domaine d'étude / de recherche Northwestern Barents Sea https://arvenetternansen.com/the-barents-sea/
Description du design Our study goals were to characterize sea ice related biota including uni- and multicellular heterotrophs over the entire seasonal cycle, along a latitudinal gradient in the northwestern Barents Sea. Nansen Legacy goals: https://arvenetternansen.com/our-goals/

Méthodes d'échantillonnage

At ice covered stations, ice cores were taken for the determination of abundance and biomass of sea-ice meiofauna and protists (lowermost 30 cm). Ice cores were taken from undeformed level ice areas with a KOVACS ice corer (Mark II coring system, diameter 9 cm) and were cut on a cutting board into the following sections, given as distance from the ice-water interface: 0-3 cm (bottom ice layer), 3-10 cm, 10-20 cm, 20-30 cm. All sea-ice core sections were melted in the dark and at 4°C within 24-28 h to and to reduce negative impacts related to osmotic stress 100 ml filtered seawater (< 0.22 µm) was initially added per 1 cm section. More detailed sampling procedure you find in the Nansen Legacy sampling protocol V10 chapter 14: Link: https://septentrio.uit.no/index.php/nansenlegacy/article/view/6684 Citation: The Nansen Legacy (2022). Sampling Protocols: Version 10. The Nansen Legacy Report Series 32/2022. DOI: https://doi.org/10.7557/nlrs.6684

Etendue de l'étude The data was collected during the Nansen Legacy seasonal study (Q2, cruise number: 2021704) from 27.04 - 20.05.2021 onboard the research vessel RV Kronprins Haakon, along a transect in the northern Barents Sea from 76N to 82N. Ice cores were taken at three ice covered station.

Description des étapes de la méthode:

  1. Sea-ice meiofauna were identified and counted with stereo microscopy and result are given as Individuals per liter (cells/L) and Individuals per square meter (Ind/m2). Biomass (μg C Ind.-1) was only determined for alive individuals according to carbon contents for ice meiofauna taxa based on literature summarized in Ehrlich et al. (2021, doi: https://doi.org/10.1525/elementa.2020.00169), and carbon values for foraminifers were provided by de Freitas et al. (2021) for benthic species (Bolivinia sp.: 0.00875 μg C Ind.-1; Elphidium sp.: 0.126 μg C Ind.-1, https://doi.org/10.2113/gsjfr.51.4.249) and Anglada-Ortiz et al. (submitted to PiO) for the pelagic species Neogloboquadrina pachyderma (0.0013 μg C Ind.-1).

Données de collection

Nom de la collection Sea-ice meiofauna biodiversity Q2
Identifiant de collection symmeioQ2
Méthode de conservation des spécimens Formalin,  Alcohol

Métadonnées additionnelles

Identifiants alternatifs a22bfeb3-ea39-43cb-ac93-ee8f7f9ddc66
https://ipt.gbif.no/resource?r=symmeio_q2